串行控制、无喀嗒声的音频/视频开关

 

器件号	Replacement	Explanation

说明

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The MAX4571–MAX4574 serial-interface controlled switches are ideal for multimedia applications. Each device features 35Ω max on-resistance, -90dB audio off-isolation at 20kHz, -60dB video off-isolation at 1.0MHz, and "clickless" mode operation for audio applications.

The MAX4571/MAX4573 contain eleven SPST switches, while the MAX4572/MAX4574 contain two SPST switches and six SPDT switches. The MAX4571/MAX4572 feature a 2-wire, I²C-compatible serial interface. The MAX4573/MAX4574 feature a 3-wire, SPI™/QSPI™/MICROWIRE™-compatible serial interface. All four parts are available in 28-pin QSOP, SSOP, and wide SO packages and operate over the commercial and extended temperature ranges.

MAX4571、MAX4573：引脚配置 放大+

关键特性

• Selectable Soft Switching Mode for "Clickless" Audio Operation
• 35Ω max On-Resistance
• -90dB Audio Off-Isolation at 20kHz
• -50dB Video Off-Isolation at 10MHz
• -90dB Audio Crosstalk at 20kHz
• -52dB Video Crosstalk at 10MHz
• Serial Interface
  • 2-Wire, Fast-Mode, I²C-Compatible (MAX4571/72)
  • 3-Wire, SPI/QSPI/MICROWIRE-Compatible (MAX4573/74)
• Single-Supply Operation from +2.7V to +5.25V

应用

• 音频系统
• PC多媒体板
• 机顶盒
• 视频会议系统